Question

Who's H.H. Holmes?

Was he a serial killer?

....

Answer 1

H.H. Holmes was an American serial killer who confessed to 27 murders (although some of his alleged victims were still alive) He received the death sentence on the charge of first degree murder in 1896.

Answer 2

Herman Webster Mudgett, better known as Dr. Henry Howard Holmes or H. H. Holmes, was an American serial killer active from December 1891 to November 1894

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